/*
 * Copyright 2023 AntGroup CO., Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 */

package com.antgroup.geaflow.console.common.util;

public class LoaderSwitchUtil {

    public static void run(ClassLoader classLoader, Runnable runnable) throws Exception {
        Thread currentThread = Thread.currentThread();
        ClassLoader oldClassLoader = currentThread.getContextClassLoader();

        try {
            currentThread.setContextClassLoader(classLoader);
            runnable.run();

        } finally {
            currentThread.setContextClassLoader(oldClassLoader);
        }
    }

    public static <T> T call(ClassLoader classLoader, Callable<T> callable) throws Exception {
        Thread currentThread = Thread.currentThread();
        ClassLoader oldClassLoader = currentThread.getContextClassLoader();

        try {
            currentThread.setContextClassLoader(classLoader);
            return callable.call();

        } finally {
            currentThread.setContextClassLoader(oldClassLoader);
        }
    }

    public interface Runnable {

        void run() throws Exception;
    }

    public interface Callable<T> {

        T call() throws Exception;
    }

}
